Pipe-band wire-looping machine.



G. P. PUHRMA'NN. PIPE BAND WIREYLOOPING-MACHINE.

APPLIOATION FILED FEB. 2n, 1911.

1,072,844. Patented Sept. 9, 1913.

4 SHEETS-'SHEET 1.

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C. P. FUHRMANN.

PIPE BAND WIRE LooPING MACHINE.

APPLICATION IILED IEB. 20, 1911.

Patented Sept. 9, 1913.

4 SHEETS-SHEET 2.

Um/C, www@ @ma C. P. PUHRMANN. PIPE lBAND WIRE LOOPING MACHINE.

APPLIoATIoN FILED 1123.20, 1911.

1,072,844. Petented sept. 9, 1913.

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@timmy C. P. FUHRMANN.

PIPE BAND WIRE LOOPING MACHINE.

APPLICATION FILED 1213.20, 1911.

4 SHEETS-SHEET 4.

Patented Sept. 9, 1913.

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. herein shown ond described and more nutren stares ramena* cerros.

CHARLES P. FUHRMANN, 0F ERIE, PENNSYLVANIA, ASSIG-NOR T0 AMERICAN CAN COMPANY, OF NEW YORK, N. Y.,'A CORPORATION 0F NEW JERSEY.

PIPE-BAND WIRE-LOOPING MACHINE.

Specification of Letters Patent.

Application led. February 20, 1911.

Patented Sept. 9, 1913. serial No. 609,561.

. To all 'wh-0m t may concern:

Be it vknown that I, CHARLES P. FUHR ivANN, a fcitizen of the United States, residing in-V Erie, in the county of Erie and State ofPennsylvania, have invented a new and useful Improvement in Pipe-Band Wire-Looping Machines, of which the following is a specification.

` My invention relates to improvements in machines for making wire looped sheet metal bands, such as are used for securing coverings on steam and other pipes.

The object of my invention is to provide a wire looping pipe band machine of a simdie coperating with the horn to partially bend and form` the loop about the horn, movable folders for .closing the ends of the partially formed wire loop about the horn and the band strip thereon, a band strip bender for turning the projecting end of the band 'strip about the folded ends of the wire loop, and a movable band strip closing or folding die for cooperating 'with the horn to close the turned end of the band strip about the Vwire loop andthus attach the same securely thereto.` y

My invention also consists in the novel construction of parts and devices and in the novel combinations of parts and devices pan ticularly specied in the claims. y

. lnV the accompanying drawing forming a partV of-this specication, Figure 1 is aplan view of` asheet metal bandstrip wire looping machine embodying my invention. Fig.

2 is a `veit-icalsection on line 2 2 of Fig. 1.:V Fig. 3 is an enlarged detail, partial plan view. -Fig. 4 is a detail, verticalsection on`the broken line 4 4` of Fig. 1. Fig. 5

is a' similar sectionalfview showing the parts line 9-9 of Fig. l, showing the wire gripper or holding die, and Fig. 10 is a perspective view of a completed article as produced by my improved machine.

ln the drawing, 1 represents the frame of the machine, which may be of any suitable form or construction, adapted to give support to the other parts, 2 the sheet metal band strip to which the wire loop 3 is to be attached, and4 the wire from which the wire loop is cut and formed. The wire 4 passes from a suitable reel, not shown, through a set of horizontally arranged wire straightening rolls 5, and a similar set of vertically arranged wire straightening rolls 6 and suitable guides 7 under the loop formF ing and band strip supporting horn 8 on the stationary frame of the machine, the wire being advanced intermittently by the movable wire feeder 9 the requisite length to form a Wire loop. The wire feeder 9 is preferably carried by a vibrating lever 10 and the wire is held stationary during the back stroke of the feeder by a movable gripper or wire holder 11, which co-perates with the stationary gripper or holder v12, and which is preferably operated by a lever 13. A stationary gage or stop 14 against which the front end of the wire abuts accurately regulates the length of wire to be cut for each wire loop 3. The wire loop is cut from the wire by a stationary cutter 15, cooperating with a movable cutter 16, preferably carried by or formed integral with the movable wire loop former die 17 'which has a groove 18 to receive the severed piece of wire, and which coperates with the band strip supporting and wire loop forming horn 8 to partially form the wire loopl or `bendthe ends 19 of the severed piece of wire 20 upward into the position y shown in Fig. 5 ofthe drawing, after which a pair of movable wire loop folders 21, 21, one on each side of the horn, move horizontally inward toward the horn and fold and close the ends off the Wire loop snugly down againstY moves upward, as indicated in dotted lines in Fig. 7 and turns the pr'ojeetinend 24 of the band strip upward into the positionv shoivn by Kilo'ttedv lines in Fig. 7L During this upward turning orv bending' o t' the proj eeting end of the band strip, the band strip is held snugly. against the horn bythe vyire loopr which, has previously been closed; ann against the hand strip and thas apnaies. te linnlv elainp. the banal. snip' te the hor-n.v this operation of the band strip handen. the banal strip teleline' er alanine die.

2,5 neat nieves liarizenlially and dpavnivanliv.

and, against the upturnecl endg 2l of. the leandsttipanfl folds. and eleses: it dev/.n and; aaeipael the Wipe. lapphat and snugly against the leanfl strip. as Wil-l be readily understood trom Eig? of the drawing.

A stationary gage tif on the frame oli the meal-Aline @HC-.le against Whieli. the extleine enel Oli'llae banal slgiip.- abats., nagelaten the length et the ineiaetineppitien 2a of the` hand. snip berend lhe enel. ai. the horn 8.. andthns the length et the froid. formeel in the leanii, strip te.: hinge the vire leen 3. therein. Thetahle er snpppist 9a7 pppn, which the sheet met-al. band strip nests. inav be. formed inf tesral; with the.V hein 8.. lt is preferably ineviplefl with side sages er, guides. 2.8-o vvhiln in. Connection with. the gage 2n enahlen the Operator te readily and` quickly pines the band. strip` in piepen ppsitien te. reeeive the loep, Wire.

2.9 is the. driving shaft, furnished; with a 2 pulley 30. Clutch 31 for eenneeting and Lisehnneetingv the. fliiving` pulley with the driving shaft.

. Motion. may be. imparted from the driving slaafttp. the Several. movable parts. or devices. efr inv machine byfany. sui-table. connecting mechanism. The. wire feeder lever l() is",' however, preferably operated.- by a @am 32 the drivingv Shaft. holding lever. 13 is preferably actuated, by a @am 332011 the.A driving shaft. rljhe movable. V55-ire loop former 17 and cutter 161 carried thereby preerably operatedV by a vertically: movable slide 34;, mounted in suitable.

guides 35 on.. theA frame of the` maehine. and; atuated by 'a Cain 36,011, the driving shaft throughA a. connecting lever 37, Whichshas an.

adjustable. Connection 3.8, 39C with. the Slide The band .strip bendelj, is preferably connected toa and operated the slide 3A lay a. further movement imparted to said- Slide by the. high portion. 4.0- et' the earn. 3.6. The. herzontally mnvable.. wire loop. fold.- ers 2L are. preferably operated. by horizonlllily mQVD'g. SlClS. 41:, moving, in guides,

on the, traine af' the. machine and pre- The wire4 gripping or 1 vided with raclnsll` engagingfgears 4A on 1 the frame of the machine Wlii/Ch'a'returned.V as inquired. hy ifaehs le en the transverse slides e6., ivhieh are actuated by cams 4'? on the driving shaft 29.'E Y Y The band strip folding or closingdie 25 'is Y i preferably carried by a verticallyvibrating b lever 48., mounted on a horizontally reoiprof' eatingv` slide 51.9, moving xin suitable fguifdes 50A onrthe trame. of: the machine. `The required horizontal movement is imparted to v this band strip folding; and closing-dige'g hy a. cani. 5l en. the driving .shaft anvhieh eli-genes a rellen 5201.1. saicllaetiaentallvmevf ing' slide; and its required vertical-empf). and denn nie-vement. isiinparieel te this folding; er elasine; che; 2:5. Yhy a eana'i the elnvine abate. which. eneaees leven 11 Y 48. A spring 54 isiniterppse.'betvveen'thef level: a8 and slide 42.2: ta. nieve the levenl Y in. the eppeaiie eliieetien' 1 x claiinff 1- 1n a inaehine for tannins attaching nire. leaps ta sheet. metal,- pipe banal-stains 'the eeinhnatien ein,v feeelen. vv-itha hand-strip Supporting anel'vviieflpep.. terna. ing lapin., Cutters, for severingthe. Wire. movable wire-leap termen eeeperatins with e said 11.0.1211,. .wiaefleep folders.- te .feld the enel portions of the Wireloop around the; anelelanip the bami-strip. against the hpin, i a inevahie band-strip laender te tnrn. thepni-f` ljleatins end afi-the. hand-strip' at angle, and a hand-strip. folding cLesingY'eii-,ete f fold andi Clase thefleentenfl ettheband-stiip iat against the hainl-stripk the. pennen iet the Wirelen 'einhiaeefl thetebv; enlastanl.- f tially as speeilefi. l 2. Ina inaehfneiotthe @lass eeserihediia eeinhinaten, snppeitne anal. ter-mins l hein adapted: tet supporta Wisef'haneli, @teit teeeling the'vviiee te pesitipnadtaeent lill@ hOlIl Wire. Glitters n rWilffafl.09p.` toi-'mer Ee.enpeiaiing with' said 11912.11,` telders tan -eeinpletins' the, Wire-leapt.. a hand-.strip laender, and a felderl ten aonapliet.neY the. 'bend ef. the band' stripf 7 if In a` naaehine of the class. deseribecli in eeinlainatien mechanism. te: bending vai-re te toatln the saine intaa. loep.;- inpvahle folders adjacent said; handing. YIneehanis.n.1'. adapted te; epinplete f the. termali-ien 1 Votzthe Wile loep. anvilr Operating atten said bending naeehanisin; a. hand-strip, bender aeliaeent lsad bending Qpenating ibend the end; Qt a. band around- .a pennen..

O thevvire 10.019. after the. latters termed; ;Q- i' anpl a folder. for cQInpleting-the.bend'ef the.' Jloanlrstrip, substantially as. specified- 4. In, a' machine Qf.- the. @lass deserloed;7

ieQnipletingV the vvre-lnep,z a..-band.-stripl"'V te. i201 p l l p 1225A.V in Combination, ivire-lnepffermer, mecha-.j

bender, a folder for completing the bend of the band-strip and operating after the bender, and Wire cutters adapted to out the Wire into lengths, substantially as specified. 5. In a machine of the classdescribed, in combination, Wire feeding means, Wire cutting means, a Wire-loop forming device, movable folders cooperating With said device for completing the Wire-loop after the same has been partially formed, a bandstrip bender operating to bend the end of a band around a portion of the Wire loop and a folder operating afterthe bender for completing the bend of the band-strip, substantially as specified. Y

6. In a machine of the class described, -in combination, a forming and supporting horn, a Wire feeder adapted to feed the Wire to a position adjacent said horn, Wire cutters, Wire-loop forming mechanism cooperating with said horn, Wire-loop folders,

Va band-strip bender, and a bandstrip folder.

7 In a machine of the class described, in combination, a' forming and supporting horn, means for feeding a Wire to a p0sition adjacent said horn, a gage for the end of the Wire to abut against, a Wire-loop former coperating With said horn, Wire- `loop folders, a band-strip bender, anda band-strip folder. i

8. In a machine of the class described, in combination, a forming and supporting horn, a Wire feeder adapted to feed the Wire toa position adjacent the horn, Wire cutting means, a Wire-loop former cooperating With said horn to form the Wire into a loop, Wireloop folders to complete the formation of the loop, a band-strip bender, a band-strip felder, and a gage for the end of the band strip toV abut against, to properly position the same before the bending and folding operations take place.

9. In a machine of the class described, in combination, a supporting and forming horn, means for forming a loop in a Wire cooperating With said horn, Wire-loop folders adapted to complete the formation of the loop, a band-strip bender coperating With said horn, aband-strip folder adapted to complete the bend in the band, a gage for the end of the band-strip to abut against, and a side 'guide for the band-strip.

CHARLES P. FUHRMANN.

Witnesses O. F. MERWIN,

II. ROUN MERDALE.

Copies of this patent may `be obtained for ve cents each, `by addressing the f Commissioner of Patents7 Washington, D. G. 

